Java Jackson - Change class name during serialization

Question

I have a class like below. When I serialize using Jackson library, I want the 'StudentClass' object name in the Json as 'class' and not 'studentClass'. I tried few things but did not work out. Please see below

public class Classification {
    private Department department;
    private StudentClass studentClass;

// getters and setters
}

public class Department {
    private Integer id;
    private String title;
// getters and setters
}

public class StudentClass {
    private Integer id;
    private String title;
// getters and setters
}

Expected output:

{
    "classification": {
        "department": {
            "id": 123,
            "title": "Healthcare"
        },
        "class": {
            "id": 456,
            "title": "blah"
        }
    }
}

Actual output:

{
    "classification": {
        "department": {
            "id": 123,
            "title": "Healthcare"
        },
        "studentClass": {
            "id": 456,
            "title": "blah"
        }
    }
}

I tried adding below config on StudentClass, however, it yielded me a different result as below

@JsonTypeName("class")
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.WRAPPER_OBJECT)
public class StudentClass {
    private Integer id;
    private String title;
// getters and setters
}

Output:

{
    "classification": {
        "department": {
            "id": 123,
            "title": "Healthcare"
        },
        "studentClass": {
            "class": {
                "id": 456,
                "title": "blah"
            }
        }
    }
}

Answer 1

Well I had to just put @JsonProperty("class") like below and it worked. My bad, I was running behind adding a different config.

public class Classification {
    private Department department;
    @JsonProperty("class")
    private StudentClass studentClass;

// getters and setters
}